Linux ntp time server configuration tutorial, ntp server configuration
Network Time Protocol (NTP) is also a new test requirement for RHCE. During study, I also reviewed how to set the Linux Time. Now I will share it with you.
It is not difficult
Network time Protocol (NTP) is also a new exam requirement for RHCE. Study time also by the way to review how to set up Linux time, now take out and share with youSetting up an NTP server is not difficult, but NTP itself is a very complex protocol.
1. Adjust database server timeBecause the app shook a shake activity found out of date 15 minutes, but also can continue to shake, the problem is that the database server time than the application server time is quite 18 minutes, and the app is the
Summary:GMT/UTC/CST;/etc/localtime,/usr/share/zoneinfo/* time zone file,/etc/profile plus TZ variable;Hardware time RTC, system time; date,hwclock,tzselect;NTP relay SERVER;RPM–IVH ntp-*;ntpdate 0.uk.pool.ntp.org; Ntpq–p,watch
remark: article reproduced from: http://www.cnblogs.com/liuyou/archive/2012/07/29/2614338.html
Summary:
GMT/UTC/CST;
/etc/localtime,/usr/share/zoneinfo/* time zone file,/etc/profile plus TZ variable;
Hardware time RTC, system time;
1. Check the current time zoneLog in as root.Date Fri Sep 5 A:£ ºWhere UTC refers to the currently used time system for world standard Time , also called World coordination Time . The English name is coordinated Universal time and the French name
Php sets the Beijing time function date_default_timezone_set (). In the php Tutorial, set the definition and usage of the Beijing time function date_default_timezone_set () to the default time zone of all date and time functions in the script.
Set the Beijing time function date_default_timezone_set () in the php Tutorial ()Definition and usageThe date_default_timezone_set () function is used to set the default time zone of all date/time functions in the
Java.time Time zone datetime class
Java.time the primary class for processing local datetime is Zoneddatetime, which is typically used to replace localdate when the time zone used for the region needs to be considered;
Zoneddatetime
Set the Beijing time function date_default_timezone_set () in the php tutorial ()Definition and usageThe date_default_timezone_set () function is used to set the default time zone of all date/time functions in the script.
SyntaxDate_default_timezone_
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